CN115182884A

CN115182884A - Pneumatic type quick waterless starting self-suction device applied to centrifugal slurry pump

Info

Publication number: CN115182884A
Application number: CN202210824869.2A
Authority: CN
Inventors: 彭光杰; 杜佳霖; 常浩; 洪世明; 姬广超
Original assignee: Jiangsu University; Zhenjiang Fluid Engineering Equipment Technology Research Institute of Jiangsu University
Current assignee: Jiangsu University; Zhenjiang Fluid Engineering Equipment Technology Research Institute of Jiangsu University
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-10-14

Abstract

The invention discloses a pneumatic quick anhydrous starting self-priming device applied to a centrifugal slurry pump, which comprises a pneumatic device, a first-stage gas-liquid separation chamber and a tail-stage gas-liquid separation chamber, wherein the two chambers are arranged at the same side of the pneumatic device; the pneumatic device utilizes high-speed gas to drive the driving disc to rotate and further drives the driving shaft to rotate, the first-stage gas-liquid separation chamber utilizes the concave-convex impellers at four corners to change the volume of the chamber so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation and exhaust and drainage, the last-stage gas-liquid separation chamber utilizes the concave-convex impellers at three corners to change the volume of the inner cavity and the outer cavity so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation and exhaust and drainage, and meanwhile, the gas in the cavities is exhausted more quickly by virtue of the high-speed gas flow channel. The device provided by the invention realizes waterless starting of the centrifugal slurry pump, realizes layer-by-layer gas-liquid separation by utilizing the self structure of the chamber, and realizes more rapid gas discharge and water filling in the chamber by virtue of high-speed gas, thereby improving the working efficiency.

Description

Pneumatic type quick anhydrous starting self-suction device applied to centrifugal slurry pump

Technical Field

The invention belongs to the field of quick self-priming devices, and particularly relates to a pneumatic quick waterless starting self-priming device applied to a centrifugal slurry pump.

Background

The centrifugal slurry pump is widely applied to the fields of ore conveying, industrial fluid conveying and the like. Because the centrifugal slurry pump is started, the cavity is filled with air before the centrifugal slurry pump is started, and the centrifugal force generated by the air is not enough to convey solid-liquid two-phase flow. Therefore, the centrifugal slurry pump needs to be pumped before being started, but the operation is complex and time-consuming, and the external vacuum pump has large vacuumizing noise and high energy consumption. Therefore, the invention provides a pneumatic quick water-free starting self-suction device applied to a centrifugal slurry pump, which solves the problem of starting and irrigating the centrifugal slurry pump.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a pneumatic quick waterless starting self-priming device applied to a centrifugal slurry pump, which adopts a high-speed gas driving mode, is similar to a Tesla turbine, has low energy consumption and simple and convenient operation, can quickly complete the processes of air suction, air exhaust and water filling in a cavity by utilizing the self structure of a gas-liquid separation chamber during starting, can ensure that air is completely discharged by layer gas-liquid separation, and finally seals water in the device by utilizing the self structure after the device stops running, so that the device is always filled with water, and can directly enter the normal running working condition when the centrifugal slurry pump is started again, thereby obviously improving the working efficiency.

The present invention achieves the above-described object by the following technical means.

A pneumatic quick anhydrous starting self-suction device applied to a centrifugal slurry pump is of a symmetrical structure and comprises a pneumatic device, a first-stage gas-liquid separation chamber and a tail-stage gas-liquid separation chamber, wherein the first-stage gas-liquid separation chamber and the tail-stage gas-liquid separation chamber are arranged on the same side of the pneumatic device in sequence, a gas outlet of the pneumatic device is connected with a high-speed gas runner, the outer side of an elbow of the high-speed gas runner is connected with a gas inlet, the high-speed gas flow flowing out of the gas outlet of the pneumatic device is cooperatively taken out by the high-speed gas flow at the gas inlet, a top outlet of the first-stage gas-liquid separation chamber is connected with a top inlet of the tail-stage gas-liquid separation chamber, an outlet runner of the tail-stage gas-liquid separation chamber is connected with the high-speed gas runner, and a floating ventilation device is arranged at the joint;

the driving shafts of the first-stage gas-liquid separation chamber and the tail-stage gas-liquid separation chamber are coaxial with the driving shaft of the pneumatic device, and the pneumatic device drives the driving disc to rotate by utilizing high-speed gas so as to drive the driving shaft to rotate;

the first-stage gas-liquid separation chamber utilizes the telescopic slide rod to change the volume of the chamber so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation, exhaust and drainage;

the tail-stage gas-liquid separation chamber utilizes a triangular concave-convex impeller to change the volume of the inner cavity and the outer cavity so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation, exhaust and drainage;

the bottom of the pneumatic device is provided with a pneumatic device fixing support, the bottom of the first-stage gas-liquid separation chamber is connected with the water inlet flow channel, and the bottom of the tail-stage gas-liquid separation chamber is provided with a tail-stage gas-liquid separation chamber telescopic support;

the pneumatic device is sequentially provided with a pneumatic device outer wall surface, a top gas side inlet, a bottom gas side inlet, a driving disc, a tapered gas channel, a tapered opening, a gas outlet and a pneumatic device rotating shaft from outside to inside, wherein the top gas side inlet is horizontally arranged on one side of the pneumatic device outer wall surface and penetrates through the pneumatic device outer wall surface; the driving disk is in reverse rotation under the synergistic action of high-speed gas entering from the top gas side inlet and the bottom gas side inlet;

the floating ventilation device is a symmetrical device, the buoyancy is good, one side of the floating ventilation device is provided with a track eight, a rotating shaft eighteen, a light rod, a rubber plate two, a rotating plate three, a stop block, a heavy rod, a rotating shaft nineteen, a pulley nine, an upper side impeller three, a floating ventilation device inner cavity and a lower side impeller three, the track eight is arranged in the wall surface of an outlet flow channel of the tail gas-liquid separation chamber, one end of the rotating plate three is connected with the topmost end of the track eight by the rotating shaft eighteen, the stop block enables the rotating plate three to rotate upwards and cannot rotate downwards, the rubber plate two is arranged at the other end of the rotating plate three to provide sealing performance, the pulley nine is arranged in the track eight and is connected with the floating ventilation device inner cavity, the floating ventilation device inner cavity can slide up and down, due to the gravity, the initial position of the floating ventilation device inner cavity is arranged at the bottommost end of the track eight, the upper side impeller three and the lower side impeller three are arranged in the floating ventilation device inner cavity, the floating ventilation device is connected with the light rod and the heavy rod by the rotating shaft nineteen, the rotating shaft nineteen initial position is located at the upper end of the pulley nine, and the other side of the floating ventilation device is consistent with the floating ventilation device;

furthermore, the distance between adjacent driving disks is the height of a tapered gas channel, the tapered gas channel is provided with two circles, the width ratio of the adjacent circles is 0.8, the tapered ports are conical, the reduction ratio is 0.7, and the interval angle between the adjacent tapered ports is 45 degrees;

further, the gas outlet is circular, the distance from the center of a circle to the axis of the rotating shaft of the pneumatic device and the distance from the wall surface of the innermost ring of the tapered gas channel to the axis of the rotating shaft of the pneumatic device are 1:1.5, the inner cavity of the floating ventilation device is a ventilation cavity;

the top outlet, the sliding device, the wall surface of the primary gas-liquid separation chamber, an inner wall telescopic slideway, a telescopic slide rod, four-corner concave-convex impellers, an upper gas-liquid separation device, a connecting device and a third track are arranged in the primary gas-liquid separation chamber from top to bottom, the first pressing self-rotation spiral gas-liquid separation device, an upper side chamber partition plate, a transitional rotation shaft rod, a first gas-liquid separation type connecting shaft, a lower side chamber partition plate, a one-way valve, a water inlet flow channel and a spring in the primary gas-liquid separation chamber are in an unstretched contraction state in an initial state;

the inner wall telescopic slideway is tightly attached to the inner side of the wall surface of the first-stage gas-liquid separation chamber, a plurality of sliding devices are uniformly arranged on the wall surface of the first-stage gas-liquid separation chamber, each sliding device divides the wall surface of the first-stage gas-liquid separation chamber and the inner wall telescopic slideway into a plurality of sections, a first rail is arranged between each section of the wall surface of the first-stage gas-liquid separation chamber, each section of the wall surface of the first-stage gas-liquid separation chamber and each section of the inner wall telescopic slideway are connected through the sliding device, each sliding device is provided with a slideway, a first sliding plate, a first spring, a first rail, a first pulley, a connecting device between the pulleys, and a side baffle, the first spring is connected with the first side baffle and the first sliding plate, one side baffle is connected with the wall surface of the first-stage gas-liquid separation chamber and one end of the inner wall telescopic slideway, the slideway is connected with the side baffle, the first sliding plate is far away from the side baffle and close to the side baffle, each section of the wall surface of the first-stage gas-liquid separation chamber and each section of the inner wall of the first-liquid separation chamber are connected through the sliding device, and the inner wall telescopic slideway, and the sliding device are connected through the sliding device, the slideway, and the slideway;

the telescopic slide bars are provided with a plurality of concave-convex impellers at four corners, each telescopic slide bar is provided with a pulley II, a rolling shaft, a connecting shaft rod I, a pulley III, an outer baffle layer and a spring II, one end of the connecting shaft rod I penetrates through the concave-convex impeller inner cavity at the four corners to be connected with a rotating shaft of a primary gas-liquid separation chamber, the other end of the connecting shaft rod I is connected with the outer baffle layer, the spring II is arranged inside the connecting shaft rod I to provide length change of the connecting shaft rod I, the outer baffle layer wraps the pulley III, the pulley III operates at the outer edge of the pulley, the rolling shaft is used for the pulley II to rotate under the operation of the pulley III, the concave-convex impeller inner cavities at the four corners are arranged on the concave-convex impellers, the rotating shaft of the primary gas-liquid separation chamber and the rotating shaft of the primary gas-liquid separation chamber are reversed;

the upper gas-liquid separation device is symmetrically arranged about the center line of a first-stage gas-liquid separation chamber, the upper gas-liquid separation device is a symmetrical device, each upper gas-liquid separation device is provided with an inner cavity of the upper gas-liquid separation device, a second connecting shaft rod is connected with the first rotating bearing, a first spiral separation blade and a first rotating shaft, one side of each upper gas-liquid separation device is provided with a first upper impeller, the other side of each lower impeller is consistent with the first upper impeller, the upper devices are all arranged in the inner cavity of the upper gas-liquid separation device, the first spiral separation blade is arranged at the first rotating shaft, the first rotating shaft is connected with the upper rotating bearing and the lower rotating bearing, the upper rotating bearing and the lower rotating bearing are respectively connected with the second connecting shaft rod at the corresponding ends, the upper connecting shaft rod and the lower connecting shaft rod are connected with the inner cavity of the upper gas-liquid separation device, the rotating bearings are formed by combining bearings and bearing slide rails, the bearings are arranged on the bearing slide rails for the first spiral separation blade to rotate, other devices, and the description is not introduced here, and the description below will not be introduced;

the connecting device is a symmetrical device and is provided with an upper side baffle, a spring III and a sliding baffle, a connecting device shell is arranged on one side, a track II and a pulley IV are arranged on the other side, the other side of the connecting device shell is consistent with that of the track II, the connecting device shell is connected with the lower side wall surface of the primary gas-liquid separation chamber, the pulley IV operates in the track II and is connected with the sliding baffle and the upper side partition plate so that the sliding baffle and the upper side partition plate can slide up and down, two sides of the upper side baffle are connected with the connecting device shell, the upper part of the upper side baffle is connected with the wall surface of the primary gas-liquid separation chamber, and the spring III is connected with the upper side baffle and the sliding baffle;

the first pressing self-rotation spiral gas-liquid separation device is symmetrically provided with two upper first pressing self-rotation spiral gas-liquid separation devices about a central line of a first-stage gas-liquid separation chamber, the two upper first pressing self-rotation spiral gas-liquid separation devices are symmetrically provided with two lower first pressing self-rotation spiral gas-liquid separation devices about a central line of a transition rotation shaft rod, the total number of the two upper first pressing self-rotation spiral gas-liquid separation devices is four, each first pressing self-rotation spiral gas-liquid separation device is provided with a third connection shaft rod, a rotating bearing, a second spiral separation blade, a third rotating shaft, a first spiral blade and a first transmission gear, the third connection shaft rod is connected with the rotating bearing and the lower side wall surface of the first-stage gas-liquid separation chamber, the rotating bearing is connected with the second rotating shaft and can be used for rotating the first pressing self-rotation spiral gas-liquid separation device, the second spiral separation blade is arranged at the second rotating shaft, two ends of the rotating shaft are respectively connected with the second rotating shaft and the first transmission gear, the first spiral blade is arranged at the second rotating shaft, the upper side separation plate and the spiral blade is connected with the wall surface which is connected with the upper separation plate and the water inlet channel;

the upper side chamber partition plate is provided with an upper side partition plate, a fourth rotating shaft and check valves, the fourth rotating shaft runs in a third track, the third track is arranged on the lower side wall surface of the primary gas-liquid separation chamber, the third track is in the same symmetrical mode with the first pressing self-rotation spiral gas-liquid separation device, the number of the third track is four, and the number of the check valves is symmetrically arranged at the upper side partition plate; two transitional rotating shaft rods are symmetrically arranged about the center line of the primary gas-liquid separation chamber, each transitional rotating shaft rod is provided with a rotating shaft five, a driven gear I, a connecting shaft rod IV and a rotating bearing, the rotating shaft five is connected with the rotating bearing, the connecting shaft rod IV is connected with the rotating bearing, and the driven gear I is meshed with the upper side transmission gear and the lower side transmission gear; the upper end of the first gas-liquid separation type connecting shaft is connected with a sliding baffle, the lower end of the first gas-liquid separation type connecting shaft is connected with the lower side cavity division plate, so that the sliding baffle and the lower side cavity division plate move upwards and downwards at the same time by a consistent distance, a plurality of first gas-liquid separation type connecting shafts are uniformly arranged at the sliding baffle, each first gas-liquid separation type connecting shaft is provided with a connecting shaft rod five, a rotating shaft six, a spiral separation blade three, a rotating bearing, a spiral separation blade three, a rotating shaft six and upper and lower side rotating bearings, and the rotating bearing is connected with the corresponding connecting shaft rod five; the lower side cavity partition plate is provided with a lower side partition plate, a seventh rotating shaft and one-way valves, the seventh rotating shaft operates in the third track, the one-way valves are symmetrically arranged at the lower side partition plate, corresponding meshing threads are arranged on the lower side partition plate and the helical blade I at the lower side in a contact manner, and the helical blade I at the lower side can rotate along with the up-and-down operation of the lower side partition plate; the water inlet flow channel is characterized in that a plurality of one-way valves are uniformly arranged on the wall surface of the water inlet flow channel, a rotating shaft eight is arranged on each of two sides of each one-way valve, a magnetic suction block I, a rotating plate I and a rubber plate I are arranged, one end of each rotating plate I is connected with the rotating shaft eight, the other end of each rotating plate I is provided with the rubber plate I, sealing performance is provided, the magnetic suction block I is arranged on the rotating plates I on the two sides, the rotating plates I on the two sides are attached under the action of magnetic force, and the rotating plates I are prevented from rotating downwards;

furthermore, four sliding devices are symmetrically arranged about the center line of the first-stage gas-liquid separation chamber, the included angle between every two adjacent sliding devices is 90 degrees, the number of the telescopic slide bars is four, the included angle between every two adjacent telescopic slide bars is 90 degrees, the inner cavity of the upper-side gas-liquid separation device is a through cavity, and the separation capacity of the upper-side chamber separation plate and the lower-side chamber separation plate is good;

furthermore, the number of the one-way valves is two at the inclined position of the upper side separation plate, two at the level of the lower side separation plate, three are uniformly arranged at the wall surface of the water inlet flow channel, and three are uniformly arranged on the first gas-liquid separation type connecting shaft;

the tail-stage gas-liquid separation chamber is sequentially provided with a top inlet, an outer wall surface of the tail-stage gas-liquid separation chamber, a telescopic support of the tail-stage gas-liquid separation chamber, an outer wall surface sliding device, an inlet gas-liquid separation device, a second gas-liquid separation type connecting shaft, a second pressing self-rotation spiral gas-liquid separation device, a pressing self-rotation gas-liquid separation device, an inner wall surface of the tail-stage gas-liquid separation chamber, an inner wall surface sliding device, a spiral rotation gas-liquid separation device, an opening-variable shaft rod, a triangular concave-convex impeller and a spring in the tail-stage gas-liquid separation chamber in an initial state which is in a non-stretching shrinkage state;

the tail-stage gas-liquid separation chamber telescopic support is arranged on the outer wall surface of the tail-stage gas-liquid separation chamber, so that the height change of the integral structure of the tail-stage gas-liquid separation chamber from the ground in the volume scaling process can be automatically adjusted; the outer wall surface sliding devices are uniformly arranged on the outer wall surface of the tail-stage gas-liquid separation chamber, the outer wall surface of the tail-stage gas-liquid separation chamber is divided into a plurality of sections by the outer wall surface sliding devices, the outer wall surface of each section of tail-stage gas-liquid separation chamber is connected by the outer wall surface sliding devices, each outer wall surface sliding device is a symmetrical device and is provided with a fifth pulley, a fourth track and a sixth connecting shaft rod, the fifth pulleys on two sides are arranged in the fourth track, and the sixth connecting shaft rods on two sides are connected with the outer wall surface of the tail-stage gas-liquid separation chamber of the adjacent section; the inlet gas-liquid separation device is arranged at an inlet at the top, two inlet gas-liquid separation devices are symmetrically arranged on a central line of a tail-stage gas-liquid separation chamber, each inlet gas-liquid separation device is a symmetric device and is provided with a rotating shaft nine, a rotating plate II, a baffle plate, a magnetic suction block II, a spring fifth, an upper side impeller II, a connecting shaft rod seventh, a lower side impeller II, a spiral separation blade IV, a rotating shaft ten and an inner cavity of the inlet gas-liquid separation device, the baffle plates at two sides are arranged on the wall surface of the inlet at the top, the rotating shaft nines at two sides are respectively arranged at the corresponding baffle plates, the rotating plate II at two sides are respectively connected with the corresponding rotating shaft nine, the magnetic suction block II is arranged on the rotating plate II at two sides, the rotating plates II at two sides are ensured to be attached by virtue of magnetic force, the rotating plate II at two sides are prevented from rotating upwards, the spring fifth at two sides are respectively connected with the rotating plate II and the baffle plate at the corresponding side, the upper side impeller II at two sides, the connecting shaft rod seventh, the lower side impeller, the spiral separation blade IV, the rotating shaft Ten and the rotating bearing Ten are respectively connected with the rotating shaft seventy connecting shaft rod on the rotating shaft rod inner cavity of the rotating shaft rod, the rotating shaft rod Ten rotating shaft and the rotating shaft separation device, the rotating shaft Ten rotating shaft separation device, the rotating shaft separation device is connected with the rotating shaft rod.

The second gas-liquid separation type connecting shafts are connected with the outer wall surface sliding device and the inner wall surface sliding device and are arranged in a plurality of numbers, each second gas-liquid separation type connecting shaft is provided with a connecting shaft rod eight, a spiral separation blade five, a rotating shaft eleven and a rotating bearing, wherein the outer side of the rotating shaft eleven is connected with the connecting shaft rod eight, the inner side of the rotating shaft eleven is connected with the rotating bearing, the connecting shaft rod eight on the outer side is connected with the rotating bearing on the outer side, the rotating bearing on the inner side is connected with the connecting shaft rod eight on the inner side, the rotating bearing on the outer side is connected with a track four, the connecting shaft rod eight on the inner side is connected with the track five, and the spiral separation blade five is arranged at the position of the rotating shaft eleven; the second pressing self-rotation spiral gas-liquid separation devices are uniformly arranged around the inner wall surface of the tail-stage gas-liquid separation chamber in a circle, each second pressing self-rotation spiral gas-liquid separation device is provided with a connecting shaft rod ten, a rotating shaft twelve, a spiral separation blade six, a rotating shaft thirteen, a spiral blade two and a rotating bearing, the rotating bearing is connected with the connecting shaft rod ten and the rotating shaft twelve, the connecting shaft rod ten is arranged on the inner side of the outer wall surface of the tail-stage gas-liquid separation chamber, the spiral separation blade six is arranged at the position of the rotating shaft twelve, the rotating shaft thirteen is connected with the rotating shaft twelve, the rotating shaft twelve penetrates through the inner wall surface of the tail-stage gas-liquid separation chamber, the spiral blade two is arranged at the position of the rotating shaft twelve, and the inner wall surface of the tail-stage gas-liquid separation chamber is correspondingly contacted with the spiral blade two to form meshing threads, and can rotate along with the contraction and expansion of the inner wall surface of the tail-stage gas-liquid separation chamber;

two pressing optional rotation gas-liquid separation devices are symmetrically arranged about the central line of the tail stage gas-liquid separation chamber, each pressing optional rotation gas-liquid separation device is a symmetrical device and is provided with a fixed block, a track six, a telescopic arm cavity, a telescopic arm, a pulley seven, a connecting shaft rod nine, a rotating shaft cavity, a spiral blade three, a rotating shaft fifteen, a rotating shaft sixteen, a spring six, a driven gear two and a rotating gear two, the fixed blocks on two sides are respectively connected with the outer wall surface of the tail stage gas-liquid separation chamber and the inner wall surface of the tail stage gas-liquid separation chamber, the spiral blade three is arranged at the fifteen position of the rotating shaft, the telescopic arm cavity and the rotating shaft cavity are arranged inside the fixed blocks, the two telescopic arms and the two helical blades are respectively supplied to the outer wall surface of the tail-stage gas-liquid separation chamber and the inner wall surface of the tail-stage gas-liquid separation chamber to contract and expand into respective chambers, two telescopic arm chambers are arranged on one side of each telescopic arm chamber, meshing threads are arranged in the rotating shaft chamber and are meshed with the three helical blades, the three helical blades can rotate spontaneously when entering the rotating shaft chamber, the telescopic arms are connected with a connecting shaft lever nine, the connecting shaft lever nine is connected with a pulley seven, the pulley seven operates in a track six, the spring six is provided with a plurality of layers, each layer is provided with a plurality of layers, the rotating shaft sixteen is not interfered with the spring six on each layer, a driven gear two is arranged at the rotating shaft sixteen, a rotating gear two is arranged at the rotating shaft fifteen positions on the two sides and is meshed with each other, and the rotating shaft fifteen rotates to drive the rotating shaft sixteen to rotate;

the inner wall surface sliding devices are uniformly arranged on the inner wall surface of the tail-stage gas-liquid separation chamber, the inner wall surface sliding devices divide the inner wall surface of the tail-stage gas-liquid separation chamber into a plurality of sections, the inner wall surface of each section of tail-stage gas-liquid separation chamber is connected by the inner wall surface sliding devices, each inner wall surface sliding device is a symmetrical device and is provided with six pulleys, five tracks and nine connecting shaft rods, the six pulleys on two sides are arranged in the five tracks, and the nine connecting shaft rods on two sides are connected with the inner wall surface of the tail-stage gas-liquid separation chamber of the adjacent section; the spiral rotary gas-liquid separation device is arranged around the inner wall surface of the tail-stage gas-liquid separation chamber in a circle, each spiral rotary gas-liquid separation device is provided with a fixed shaft rod, a spiral separation blade seven and a rotating shaft fourteen, the fixed shaft rods on two sides are arranged on the inner wall surface of the tail-stage gas-liquid separation chamber, the spiral separation blade seven is arranged on the fourteen positions of the rotating shaft, the rotating shaft fourteen positions are inserted between the fixed shaft rods on two sides in a penetrating way, the variable-opening degree shaft rods are arranged around the triangular concave-convex impeller in a circle, each variable-opening degree shaft rod is provided with a lever arm, a spring seven, a rotating shaft seventeen and a spring eight, a connecting shaft rod eleven and a pulley eight, the lever arms on two sides are connected with the inner wall surface of the tail-stage gas-liquid separation chamber of an adjacent section, the spring seventh is arranged between the lever arms at two sides, the rotating shaft seventeen is arranged at the eleven part of the connecting shaft lever, the opening degree of the lever arms can be changed by means of the rotating shaft seventeen, and the opening degree is changed, so that the inner wall surfaces of tail-stage gas-liquid separation chambers of adjacent sections are combined and separated; the triangular concave-convex impeller is provided with a seventh track, a rotating shaft of the tail-stage gas-liquid separation chamber is also in a triangular concave-convex shape, and the rotating shaft of the tail-stage gas-liquid separation chamber rotates reversely;

further, the outer wall surface sliding devices are uniformly and symmetrically arranged in three numbers, the adjacent interval is 120 degrees, the second gas-liquid separation type connecting shafts are symmetrically arranged in three numbers, the adjacent interval is 120 degrees, the inner wall surface sliding devices are uniformly and symmetrically arranged in three numbers, the adjacent interval is 120 degrees, and the inner cavity of the inlet gas-liquid separation device is a through cavity;

further, six springs are provided with three layers, each layer is three, the spiral type rotating gas-liquid separation device is three in uniform symmetry, the intervals between every two layers are 120 degrees, the variable-opening-degree shaft rods are three in uniform symmetry, and the intervals between every two layers are 120 degrees.

The invention has the beneficial effects that:

1. the invention adopts a pneumatic device, the device adopts a top gas side inlet and a bottom gas side inlet to blow a driving disc, the driving disc rotates to drive a rotating shaft of the pneumatic device to rotate, and further drives a driving shaft of a first-stage gas-liquid separation chamber and a tail-stage gas-liquid separation chamber to rotate, an outlet flow channel of the tail-stage gas-liquid separation chamber is connected with a high-speed gas flow channel, and the high-speed gas flow at an air inlet is combined to cooperatively carry out high-speed gas flow flowing out from an air outlet of the pneumatic device to discharge air of the two chambers more quickly, meanwhile, the floating ventilation device ensures that only a ventilation body is not communicated with liquid, reduces unnecessary liquid outflow, obviously improves the working efficiency, and greatly simplifies the operation process.

2. The invention adopts a first-stage gas-liquid separation chamber, utilizes the combined action of a telescopic slide rod, an inner wall telescopic slideway and a sliding device, utilizes centrifugal force to expand the volume, utilizes the geometric shape of the slideway to reduce the volume, sequentially generates pressure difference with the outside to realize water absorption, gas-liquid separation, air exhaust and water drainage, simultaneously adopts a first pressing self-selection rotating spiral gas-liquid separation device, can provide a spiral blade to rotate along with the up-and-down operation of an upper side division plate through a meshing thread between the spiral blade and the division plate so as to carry out gas-liquid separation, simultaneously can ensure that the upper side division plate and the lower side division plate move for consistent distance through a first gas-liquid separation type connecting shaft, drives 4 first pressing self-selection rotating spiral gas-liquid separation devices to operate simultaneously, and the first gas-liquid separation type connecting shaft also has a gas-liquid separation function, and realizes full gas-liquid separation.

3. The invention adopts a tail-stage gas-liquid separation chamber, the chamber changes the opening of the opening-variable shaft rod by utilizing the concave-convex point transformation of a triangular concave-convex impeller, the volume of an inner chamber is changed by combining an inner wall surface sliding device, the volume of an outer chamber of the inner chamber is simultaneously contracted and expanded by further combining a second gas-liquid separation type connecting shaft and an outer wall surface sliding device, the volume of the chamber is changed to generate pressure difference with the outside to realize water absorption, and the gas-liquid separation device in the chamber is combined to realize gas-liquid separation, gas discharge and water discharge.

4. The invention adopts a pressing self-rotation gas-liquid separation device and the device can simultaneously contract and expand the volumes of the inner cavity and the outer cavity, the distance between the inner cavity and the outer cavity is reduced, a third helical blade is pressed to enter a rotating shaft cavity, the rotation is realized by combining the meshing thread in the rotating shaft cavity with the third helical blade, a second rotating gear is driven to rotate, a second driven gear is further driven to rotate, further a sixteen rotating shaft is driven to rotate, gas-liquid separation is carried out, and meanwhile, the second pressing self-rotation gas-liquid separation device also rotates by combining the meshing thread on the inner wall surface of a tail-stage gas-liquid separation cavity and the corresponding contact of the second helical blade along with the reduction of the distance between the inner cavity and the outer cavity.

Drawings

FIG. 1 is a side view of the pneumatic quick waterless start self-priming apparatus for centrifugal slurry pumps according to the present invention;

FIG. 2 is an enlarged view of the floating vent structure;

FIG. 3 is a schematic structural view of the pneumatic device;

FIG. 4 is a schematic structural view of a primary gas-liquid separation chamber of the pneumatic rapid water-free starting self-priming device applied to a centrifugal slurry pump according to the present invention;

FIG. 5 is an enlarged view of the runner structure;

FIG. 6 is an enlarged view of the structure of the telescopic sliding rod;

FIG. 7 is an enlarged view of a four-corner concave-convex impeller structure;

FIG. 8 is an enlarged view of the upper gas-liquid separating device;

FIG. 9 is a top view of the rotary bearing structure;

FIG. 10 is an enlarged view of the structure of the connecting device;

FIG. 11 is an enlarged view of the first pressing self-rotating spiral gas-liquid separator;

FIG. 12 is an enlarged view of the upper chamber divider plate configuration;

FIG. 13 is an enlarged view of the structure of the transition rotating shaft;

fig. 14 is an enlarged view of the structure of the first gas-liquid separation type connecting shaft;

FIG. 15 is an enlarged view of the lower chamber divider plate configuration;

FIG. 16 is an enlarged view of the structure of the check valve;

FIG. 17 is a schematic structural view of a tail-stage gas-liquid separation chamber of the pneumatic rapid water-free starting self-priming device applied to a centrifugal slurry pump according to the present invention;

FIG. 18 is an enlarged view of the outboard wall runner configuration;

FIG. 19 is an enlarged view of the inlet gas-liquid separating device;

fig. 20 is an enlarged view of a second gas-liquid separation type connecting shaft structure;

FIG. 21 is an enlarged view of the inner wall runner structure;

FIG. 22 is an enlarged view of the second pressing self-rotating spiral gas-liquid separating device;

FIG. 23 is an enlarged view of the structure of the spiral-type rotating gas-liquid separating device;

FIG. 24 is an enlarged view of the structure of the pressing rotation-selecting gas-liquid separating device;

FIG. 25 is a side view showing the structure of a pressing rotation-selecting gas-liquid separating apparatus;

FIG. 26 is an enlarged view of a variable-opening shaft;

fig. 27 is an enlarged view of the triangular concave-convex impeller structure.

In the figure:

1. the outer wall surface of the pneumatic device; 2. a top gas side inlet; 3. a drive disc; 4. a tapered gas passage; 5. a tapered opening; 6. a gas outlet; 7. a pneumatic device rotating shaft; 8. a bottom gas side inlet; 9. the pneumatic device fixing bracket; 10. a top outlet;

11. a runner; 111. a slideway; 112. a first sliding plate; 113. a first spring; 114. a first pull rod; 115. a first track; 116. a first pulley; 117. a pulley-to-pulley connecting device; 118. a side baffle;

12. the wall surface of the first-stage gas-liquid separation chamber; 13. an inner wall telescopic slideway;

14. a telescopic slide bar; 141. a second pulley; 142. a roller; 143. connecting the first shaft rod; 144. a third pulley; 145. an outer barrier layer; 146. a second spring;

15. a four-corner concave-convex impeller; 151. the four corners are concave-convex impeller inner cavities; 152. a first-stage gas-liquid separation chamber rotating shaft;

16. an upper gas-liquid separation device; 161. an upper side impeller I; 162. an inner cavity of the upper gas-liquid separation device; 163. a first lower impeller; 164. connecting a second shaft lever; 165. a rotating bearing; 166. a first spiral separation blade; 167. a first rotating shaft;

1651. a bearing; 1652. a bearing slide rail;

17. a connecting device; 171. a connecting device housing; 172. a second track; 173. a fourth pulley; 174. an upper baffle plate; 175. a third spring; 176. a slide damper;

18. a third track;

19. a first pressing self-rotating spiral gas-liquid separation device; 191. connecting a third shaft lever; 192. a second spiral separation blade; 193. a second rotating shaft; 194. a third rotating shaft; 195. a first helical blade; 196. a first transmission gear;

20. an upper-side chamber partition plate; 201. an upper side partition plate; 202. a fourth rotating shaft;

21. a transitional rotating shaft; 211. a fifth rotating shaft; 212. a first driven gear; 213. connecting a shaft lever IV;

22. a first gas-liquid separation type connecting shaft; 221. connecting a shaft lever V; 222. a sixth rotating shaft; 223. a third spiral separation blade;

23. a lower chamber divider plate; 231. a lower partition plate; 232. a rotating shaft seven;

24. a one-way valve; 241. a rotating shaft eight; 242. a first magnetic suction block; 243. rotating the first plate; 244. a first rubber plate;

25. a water inlet flow channel; 26. a top inlet; 27. the outer wall surface of the tail-stage gas-liquid separation chamber; 28. the inner wall surface of the tail-stage gas-liquid separation chamber;

29. an outer wall surface sliding device; 291. a fifth pulley; 292. a fourth track; 293. connecting a shaft lever six;

30. an inlet gas-liquid separation device; 301. a rotating shaft nine; 302. a second rotating plate; 303. a baffle plate; 304. a second magnetic absorption block; 305. a fifth spring; 306. an upper impeller II; 307. a connecting shaft rod seventh; 308. a second lower impeller; 309. a spiral separation blade four; 3010. a rotating shaft ten; 3011. an inner cavity of the inlet gas-liquid separation device;

31. a second gas-liquid separation type connecting shaft; 311. connecting an axostylus axostyle eight; 312. a fifth spiral separation blade; 313. eleven rotating shafts;

32. an inner wall surface sliding device; 321. a sixth pulley; 322. a fifth track; 323. connecting a ninth shaft lever;

33. a second pressing self-rotation spiral gas-liquid separation device; 331. connecting a shaft lever ten; 332. a rotating shaft twelve; 333. a spiral separating blade six; 334. a rotating shaft thirteen; 335. a second helical blade;

34. a spiral rotary gas-liquid separation device; 341. fixing the shaft lever; 342. a spiral separation blade seven; 343. a rotation axis fourteen;

35. pressing the self-selection-transfer gas-liquid separation device; 351. a fixed block; 352. a track six; 353. a telescopic arm cavity; 354. a telescopic arm; 355. a seventh pulley; 356. connecting a ninth shaft lever; 357. a rotating shaft cavity; 358. a third helical blade; 359. a rotation axis fifteen; 3510. a rotating shaft sixteen; 3511. a sixth spring; 3512. a driven gear II; 3513. rotating a second gear;

36. an opening degree variable shaft lever; 361. a lever arm; 362. a seventh spring; 363. seventeen rotating shafts; 364. a spring eight; 365. eleven connecting shafts; 366. a eighth pulley;

37. a triangular concave-convex impeller; 371. a seventh rail; 372. a tail-stage gas-liquid separation chamber rotating shaft;

38. a tail-stage gas-liquid separation chamber telescopic support; 39. an air inlet; 40. a high-speed gas flow channel;

41. a floating breather device; 411. a rail eight; 412. eighteen rotating shafts; 413. a light bar; 414. a second rubber plate; 415. rotating the plate III; 416. a stopper; 417. a heavy bar; 418. nineteen axes of rotation; 419. a ninth pulley; 4110. an upper impeller III; 4111. an inner cavity of the floating ventilation device; 4112. a lower impeller III;

42. a pneumatic device; 43. an outlet flow passage of the tail-stage gas-liquid separation chamber; 44. a primary gas-liquid separation chamber; 45. a tail stage gas-liquid separation chamber; 46. and an air outlet of the pneumatic device.

Detailed Description

The present invention will be further described with reference to the following figures 1-27 and the specific embodiments, but the scope of the present invention is not limited thereto.

As shown in fig. 1, 3, 4, and 17, the pneumatic quick anhydrous starting self-priming device applied to the centrifugal slurry pump according to the present invention has a symmetrical structure, and includes a pneumatic device 42, a first-stage gas-liquid separation chamber 44, and a last-stage gas-liquid separation chamber 45, the first-stage gas-liquid separation chamber 44 and the last-stage gas-liquid separation chamber 45 are disposed on the same side of the pneumatic device 42, the first-stage gas-liquid separation chamber 44, and the last-stage gas-liquid separation chamber 45 are sequentially installed, a gas outlet 46 of the pneumatic device is connected to a high-speed gas flow passage 40, an outer side of the high-speed gas flow passage 40 is connected to a gas inlet 39, the high-speed gas flow at the gas inlet 39 cooperatively carries a high-speed gas flow flowing out from the gas outlet 46 of the pneumatic device, a top outlet 10 of the first-stage gas-liquid separation chamber 44 is connected to a top inlet 26 of the last-stage gas-liquid separation chamber 45, an outlet flow passage 43 of the last-liquid separation chamber is connected to the high-speed gas flow passage 40, and a floating ventilation device 41 is disposed at the connection;

the driving shafts of the first-stage gas-liquid separation chamber 44 and the last-stage gas-liquid separation chamber 45 are coaxial with the driving shaft of the pneumatic device 42, and the pneumatic device 42 drives the driving disc 3 to rotate by utilizing high-speed gas so as to drive the driving shaft to rotate;

the primary gas-liquid separation chamber 44 utilizes the telescopic slide rod 14 to change the volume of the chamber so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation, exhaust and drainage;

the tail-stage gas-liquid separation chamber 45 utilizes the triangular concave-convex impeller 37 to change the volume of the inner chamber and the outer chamber so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation, exhaust and drainage;

the bottom of the pneumatic device 42 is provided with a pneumatic device fixing support 9, the bottom of the first-stage gas-liquid separation chamber 44 is connected with the water inlet runner 25, and the bottom of the tail-stage gas-liquid separation chamber 45 is provided with a tail-stage gas-liquid separation chamber telescopic support 38;

the pneumatic device 42 is sequentially provided with a pneumatic device outer wall surface 1, a top gas side inlet 2, a bottom gas side inlet 8, a driving disk 3, a tapered gas channel 4, a tapered port 5, a gas outlet 6 and a pneumatic device rotating shaft 7 from outside to inside, wherein the top gas side inlet 2 is horizontally arranged on one side of the pneumatic device outer wall surface 1 and penetrates through the pneumatic device outer wall surface 1, the bottom gas side inlet 8 is horizontally arranged on the other side of the pneumatic device outer wall surface 1 and penetrates through the pneumatic device outer wall surface 1, the driving disks 3 are stacked into a stack and are uniformly inserted into the pneumatic device rotating shaft 7, adjacent driving disks 3 are spaced at a certain distance, the tapered gas channel 4 is an annular flow channel, a plurality of rings are arranged on the surface of each driving disk 3, the flow channel width is reduced in a certain proportion from the outer edge of the driving disk 3 to the central point direction, the tapered ports 5 are uniformly arranged at the position of each tapered gas channel 4, the adjacent tapered ports 5 are spaced at a certain angle and are consistent in shape, the tapered direction is gradually tapered from the outer edge of the driving disk 3 to the central point, the gas outlet 6 is spaced at a certain distance from the pneumatic device rotating shaft 7, the pneumatic device rotating shaft 7 surrounds the pneumatic device rotating shaft 7, a circle, and is uniformly arranged at the position corresponding to the pneumatic device outlet 46 of each pneumatic device outer wall surface; the drive plate 3 is in reverse rotation under the synergistic effect of high-speed gas entering from the top gas side inlet 2 and the bottom gas side inlet 8;

the floating air breather 41 is a symmetrical device, the buoyancy is better, one side of the floating air breather 41 is provided with a track eight 411, a rotating shaft eighteen 412, a light rod 413, a rubber plate two 414, a rotating plate three 415, a stop 416, a heavy rod 417, a rotating shaft nineteen 418, a pulley nine 419, an upper impeller three 4110, a floating air breather inner cavity 4111, a lower impeller three 4112, a track eight 411 is arranged inside the wall surface of an outlet flow channel 43 of a tail stage gas-liquid separation chamber, the rotating shaft eighteen 412 connects one end of the rotating plate three 415 with the topmost end of the track eight 411, the stop 416 enables the rotating plate three 415 to rotate only upwards but not rotate downwards, the rubber plate two 414 is arranged at the other end of the rotating plate three 415 to provide sealing performance, the pulley nine is arranged inside the track eight 411 and is connected with the floating air breather inner cavity 4111 to allow the floating air breather inner cavity 4111 to slide upwards and downwards, due to gravity, the initial position of the floating air breather inner cavity 4111 is arranged at the bottommost end of the track eight 411, the upper impeller three impellers 4110 and the lower impeller three impellers 4112 are arranged on the other side of the floating air breather inner cavity 1, the floating air breather, the rotating shaft nineteen 418, the rotating shaft 419, the light rod 417, the track 418, the initial position of the floating air breather can be arranged on the floating air breather device 41 and the eight initial position of the rotating shaft 419 due to be consistent with the gravity;

optionally, the distance between adjacent driving discs 3 is the height of a tapered gas channel 4, the tapered gas channel 4 is provided with two circles, the width ratio of the adjacent circles is 0.8, the tapered mouth 5 is conical, the reduction ratio is 0.7, and the interval angle between the adjacent tapered mouths 5 is 45 degrees;

optionally, the gas outflow opening 6 is circular, the distance from the center of the circle to the axis of the pneumatic device rotating shaft 7 and the distance from the innermost ring wall surface of the tapered gas channel 4 to the axis of the pneumatic device rotating shaft 7 are 1:1.5, an inner cavity 4111 of the floating ventilation device is a through cavity;

the primary gas-liquid separation chamber 44 is provided with a top outlet 10, a sliding device 11, a primary gas-liquid separation chamber wall surface 12, an inner wall telescopic slideway 13, a telescopic slide rod 14, a four-corner concave-convex impeller 15, an upper side gas-liquid separation device 16, a connecting device 17, a track III 18, a first pressing self-rotation spiral gas-liquid separation device 19, an upper side chamber partition plate 20, a transitional rotating shaft rod 21, a first gas-liquid separation type connecting shaft 22, a lower side chamber partition plate 23, a one-way valve 24 and a water inlet flow channel 25 from top to bottom, and the initial state of a spring in the primary gas-liquid separation chamber 44 is in a non-stretching contraction state;

the inner wall telescopic slideway 13 is tightly attached to the inner side of the wall surface 12 of the first-stage gas-liquid separation chamber, a plurality of sliding devices 11 are uniformly arranged on the wall surface 12 of the first-stage gas-liquid separation chamber, each sliding device 11 divides the wall surface 12 of the first-stage gas-liquid separation chamber and the inner wall telescopic slideway 13 into a plurality of sections, a first track 115 is arranged between the wall surfaces 12 of each section of the first-stage gas-liquid separation chamber, each section of the wall surface 12 of the first-stage gas-liquid separation chamber and the inner wall telescopic slideway 13 are connected by the sliding device 11, each sliding device 11 is provided with a slideway 111, a first sliding plate 112, a first spring 113, a first pull rod 114, a first track 115, a first pulley 116, an inter-pulley connecting device 117, a side baffle 118, and a first pull rod 114 which is connected with the wall surface 12 of the first-stage gas-liquid separation chamber and one end of the inner wall telescopic slideway 13, the first sliding plate 112 is connected with the first pull rod 114 and the inter-pulley connecting device 117, the first pulley 116, the first pull rod 114 and the inter-pulley connecting device 117 are positioned in the first rail 115, the first pulley 116 is connected together by the inter-pulley connecting device 117, the first spring 113 is connected with the first side baffle 118 and the first sliding plate 112, the first side baffle 118 is connected with the wall surface 12 of the first-stage gas-liquid separation chamber and the other end of the inner wall telescopic slideway 13, the slideway 111 is connected with the first side baffle 118, and the first sliding plate 112 operates on the slideway 111 to be away from the first side baffle 118 and close to the first side baffle 118 to drive the wall surface 12 of each first-stage gas-liquid separation chamber and the inner wall telescopic slideway 13 to be combined and separated, so that the volume is reduced and expanded;

a plurality of telescopic slide bars 14 are arranged at the four-corner concave-convex impeller 15, each telescopic slide bar 14 is provided with a pulley II 141, a roller 142, a connecting shaft rod I143, a pulley III 144, an outer barrier 145 and a spring II 146, one end of the connecting shaft rod I143 penetrates through an inner cavity 151 of the four-corner concave-convex impeller to be connected with a rotating shaft 152 of a primary gas-liquid separation chamber, the other end of the connecting shaft rod I is connected with the outer barrier 145, the spring II 146 is arranged inside the connecting shaft rod I143 to provide length change for the connecting shaft rod I143, the outer barrier 145 wraps the pulley III 144, the pulley III 144 operates on the outer edge of the pulley II 141, the roller 142 is used for the pulley II 141 to rotate under the operation of the pulley III 144, the four-corner concave-convex impeller 15 is provided with the inner cavity 151, the rotating shaft 152 of the primary gas-liquid separation chamber and the rotating shaft 152 of the primary gas-liquid separation chamber are reversely rotated;

the two upper-side gas-liquid separation devices 16 are symmetrically arranged about the center line of the first-stage gas-liquid separation chamber 44, each upper-side gas-liquid separation device 16 is a symmetrical device, each upper-side gas-liquid separation device 16 is provided with an upper-side gas-liquid separation device inner cavity 162, a connecting shaft rod II 164, a rotating bearing 165, a spiral separation blade I166 and a rotating shaft I167, one side of each upper-side gas-liquid separation device 16 is provided with an upper-side impeller I161, a lower-side impeller I163 and the other side of each upper-side gas-liquid separation device I is consistent with the upper-side gas-liquid separation device inner cavity 162, the spiral separation blade I166 is arranged at the rotating shaft I167 and is connected with an upper-lower-end rotating bearing 165, the upper-lower-end rotating bearing 165 is respectively connected with the connecting shaft rod II 164 at the corresponding end, the upper-side connecting shaft rod II 164 is connected with the upper-side gas-liquid separation device inner cavity 162, the rotating bearing is formed by combining a bearing 1651 and a bearing sliding rail 1652, the bearing 1651 is arranged on the bearing sliding rail 1652, the bearing 1652, the rotating bearing 165 is arranged on other devices, and the description will not be described more;

the connecting device 17 is a symmetrical device and is provided with an upper side baffle 174, a spring III 175 and a sliding baffle 176, one side of the connecting device is provided with a connecting device shell 171, a second track 172 and a fourth pulley 173, and the other side of the connecting device shell is consistent with the second track 172 and the lower side wall surface of the first-stage gas-liquid separation chamber 44;

the first self-rotating pressing spiral gas-liquid separating device 19 is provided with two first self-rotating pressing spiral gas-liquid separating devices 19 at the upper side symmetrically about the central line of the primary gas-liquid separating chamber 44, and the two upper sides are provided with two lower sides symmetrically about the central line of the transitional rotating shaft, and the total number is four, each first self-rotating pressing spiral gas-liquid separating device 19 is provided with a connecting shaft rod three 191, a rotating bearing 165, a spiral separating blade two 192, a rotating shaft two 193, a rotating shaft three 194, a spiral blade one 195, a transmission gear one 196, the connecting shaft rod three 191 is connected with the rotating bearing 165 and the lower side wall surface of the primary gas-liquid separating chamber 44, the rotating bearing 165 is connected with the rotating shaft two 193 and can be used for rotating the first self-rotating pressing spiral gas-liquid separating device 19, the spiral separating blade two 192 is arranged at the rotating shaft two 193, two ends of the rotating shaft three 194 are respectively connected with the rotating shaft two 193 and the transmission gear one 196, the spiral blade one 195 is arranged at the rotating shaft two 193, the upper side partition plate 201 and the spiral blade one 195 is connected with the lower side wall surface of the transmission gear 196, and can drive the driven water inlet flow passage of the first self-rotating separating device 19;

the upper side chamber partition plate 20 is provided with an upper side partition plate 201, four rotating shafts 202 and one-way valves 24, the four rotating shafts 202 operate in a third track 18, the third track 18 is arranged on the lower side wall surface of the first-stage gas-liquid separation chamber 44 and is in the same symmetrical mode with the first pressing self-rotation spiral gas-liquid separation device 19, the number of the four tracks is four, and the number of the one-way valves 24 is symmetrically arranged at the upper side partition plate 201; two transition rotating shafts 21 are symmetrically arranged around the center line of the primary gas-liquid separation chamber 44, each transition rotating shaft 21 is provided with a fifth rotating shaft 211, a first driven gear 212, a fourth connecting shaft 213 and a rotating bearing 165, the fifth rotating shaft 211 is connected with the rotating bearing 165, the fourth connecting shaft 213 is connected with the rotating bearing 165, and the first driven gear 212 is meshed with the first upper and lower transmission gears 196; the upper end of the first gas-liquid separation type connecting shaft 22 is connected with a sliding baffle 176, the lower end of the first gas-liquid separation type connecting shaft is connected with the lower side chamber partition plate 23, so that the sliding baffle 176 and the lower side chamber partition plate 23 move upwards and downwards at the same time for a consistent distance, a plurality of first gas-liquid separation type connecting shafts 22 are uniformly arranged at the sliding baffle 176, each first gas-liquid separation type connecting shaft 22 is provided with a connecting shaft rod five 221, a rotating shaft six 222, a spiral separation blade three 223 and a rotating bearing 165, the spiral separation blade three 223 is arranged on the rotating shaft six 222, the rotating shaft six 222 is connected with the upper and lower side rotating bearings 165, and the rotating bearing 165 is connected with the corresponding connecting shaft rod five 221; the lower chamber partition plate 23 is provided with a lower partition plate 231, a rotating shaft seven 232 and a one-way valve 24, the rotating shaft seven 232 operates in the track three 18, the one-way valve 24 is symmetrically provided with a plurality of lower partition plates 231, the lower partition plates 231 are correspondingly engaged with the lower helical blade one 195 in a contact manner, and the lower helical blade one 195 can rotate along with the up-and-down operation of the lower partition plates 231; the one-way valves 24 are uniformly provided with a plurality of rotating shafts eight 241, magnetic suction blocks 242, rotating plates one 243 and rubber plates one 244 are arranged on two sides of each one-way valve 24, one end of each rotating plate one 243 is connected with the corresponding rotating shaft eight 241, the other end of each rotating plate one 244 is provided with the corresponding rubber plate one 244 to provide sealing performance, the magnetic suction blocks one 242 are arranged on the rotating plates one 243 on two sides to ensure that the rotating plates one 243 on two sides are attached under the action of magnetic force, and the rotating plates one 243 are prevented from rotating downwards;

optionally, four sliding devices 11 are symmetrically arranged about the center line of the primary gas-liquid separation chamber 44, the included angle between adjacent sliding devices 11 is 90 °, the number of the telescopic slide bars 14 is four, the included angle between adjacent telescopic slide bars 14 is 90 °, the inner cavity 162 of the upper gas-liquid separation device is a through cavity, and the separation capacity of the upper chamber partition plate 20 and the lower chamber partition plate 23 is good;

optionally, two check valves 24 are symmetrically arranged at the inclined position of the upper partition plate 201, two check valves are symmetrically arranged at the horizontal position of the lower partition plate 231, three check valves are uniformly arranged on the wall surface of the water inlet channel 25, and three first gas-liquid separation type connecting shafts 22 are uniformly arranged;

the tail-stage gas-liquid separation chamber 45 is sequentially provided with a top inlet 26, an outer wall surface 27 of the tail-stage gas-liquid separation chamber, a telescopic bracket 38 of the tail-stage gas-liquid separation chamber, an outer wall surface sliding device 29, an inlet gas-liquid separation device 30, a second gas-liquid separation type connecting shaft 31, a second pressing self-rotation spiral gas-liquid separation device 33, a pressing self-rotation gas-liquid separation device 35, an inner wall surface 28 of the tail-stage gas-liquid separation chamber, an inner wall surface sliding device 32, a spiral rotation gas-liquid separation device 34, an opening degree variable shaft rod 36, a triangular concave-convex impeller 37 and a tail-stage gas-liquid separation chamber 45 from outside to inside, wherein the initial state of a spring in the tail-stage gas-liquid separation chamber 45 is a non-stretching shrinkage state;

the tail-stage gas-liquid separation chamber telescopic support 38 is arranged on the outer wall surface 27 of the tail-stage gas-liquid separation chamber, so that the height change of the integral structure of the tail-stage gas-liquid separation chamber 45 from the ground in the volume scaling process can be automatically adjusted; the outer wall surface sliding devices 29 are uniformly arranged on the outer wall surface 27 of the tail-stage gas-liquid separation chamber, the outer wall surface sliding devices 29 divide the outer wall surface 27 of the tail-stage gas-liquid separation chamber into a plurality of sections, the outer wall surface 27 of each section of tail-stage gas-liquid separation chamber is connected by the outer wall surface sliding devices 29, each outer wall surface sliding device 29 is a symmetrical device and is provided with five pulleys 291, four rails 292 and six connecting shaft rods 293, the five pulleys 291 on the two sides are arranged in the four rails 292, and the six connecting shaft rods 293 on the two sides are connected with the outer wall surface 27 of the tail-stage gas-liquid separation chamber of the adjacent section; the inlet gas-liquid separation device 30 is arranged at the position of the top inlet 26, two inlet gas-liquid separation devices 30 are symmetrically arranged on the center line of the tail stage gas-liquid separation chamber 45, each inlet gas-liquid separation device 30 is a symmetric device and is provided with a rotating shaft nine 301, a rotating plate two 302, a baffle 303, a magnetic attraction block two 304, a spring five 305, an upper side impeller two 306, a connecting shaft rod seven 307, a lower side impeller two 308, a spiral separation blade four 309, a rotating shaft ten 3010, an inner cavity 3011 of the inlet gas-liquid separation device, the baffle 303 at two sides are arranged on the wall surface of the top inlet 26, the rotating shaft nine 301 at two sides are respectively arranged at the corresponding baffle 303, the rotating plates two 302 at two sides are respectively connected with the corresponding rotating shaft nine 301, the magnetic attraction block two 304 are arranged on the rotating plates two 302 at two sides to ensure that the rotating plates 302 at two sides are attached by means of magnetic force, the second rotating plate 302 is prevented from rotating upwards, the five springs 305 on two sides are respectively connected with the second rotating plate 302 and the baffle 303 on the corresponding side, the second upper impeller 306, the seventh connecting shaft rod 307, the second lower impeller 308, the fourth spiral separating blade 309, the tenth rotating shaft 3010 and the rotating bearing 165 on two sides are all arranged in an inner cavity 3011 of the inlet gas-liquid separation device, the tenth rotating shaft 3010 is connected with the upper and lower rotating bearings 165, the upper and lower rotating bearings 165 are connected to allow the fourth spiral separating blade 309 to rotate, the upper and lower rotating bearings 165 are respectively connected with the seventh connecting shaft rod 307 on the corresponding side, the seventh connecting shaft rod 307 on the upper and lower sides is connected with the wall surface of the inner cavity 3011 of the inlet gas-liquid separation device, and the fourth spiral separating blade 309 is arranged at the tenth rotating shaft 3010;

the second gas-liquid separation type connecting shafts 31 are connected with the outer wall surface sliding device 29 and the inner wall surface sliding device 32, a plurality of second gas-liquid separation type connecting shafts are arranged, each second gas-liquid separation type connecting shaft 31 is provided with a connecting shaft rod eight 311, a spiral separation blade five 312, a rotating shaft eleven 313, a rotating bearing 165, a connecting shaft rod eight 311 connected to the outer side of the rotating shaft eleven 313, a rotating bearing 165 connected to the inner side of the rotating shaft eleven 313, a connecting shaft rod eight 311 connected to the outer side of the connecting shaft rod eight 311, a connecting shaft rod eight 311 connected to the inner side of the rotating bearing 165, an outer rotating bearing 165 connected to a track four 292, a connecting shaft rod eight 311 connected to the track five 322, and a spiral separation blade five 312 arranged at the position of the rotating shaft eleven 313; a plurality of second pressing self-rotation spiral gas-liquid separation devices 33 are uniformly arranged around the inner wall surface 28 of the tail-stage gas-liquid separation chamber in a circle, each second pressing self-rotation spiral gas-liquid separation device 33 is provided with a connecting shaft rod ten 331, a rotating shaft twelve 332, a spiral separation blade six 333, a rotating shaft thirteen 334, a spiral blade two 335, a rotating bearing 165 is connected with the connecting shaft rod ten 331 and the rotating shaft twelve 332, the connecting shaft rod ten 331 is arranged on the inner side of the outer wall surface 27 of the tail-stage gas-liquid separation chamber, the spiral separation blade six 333 is arranged at the rotating shaft twelve 332, the rotating shaft thirteen 334 is connected with the rotating shaft twelve 332, the rotating shaft twelve 332 penetrates through the inner wall surface 28 of the tail-stage gas-liquid separation chamber, the spiral blade two 335 is arranged at the rotating shaft twelve 332, and the inner wall surface 28 of the tail-stage gas-liquid separation chamber is correspondingly contacted with the spiral blade two 335 and is capable of rotating along with the contraction and expansion of the inner wall surface 28 of the tail-stage gas-liquid separation chamber;

two pressing self-rotation gas-liquid separation devices 35 are symmetrically arranged about the central line of the tail stage gas-liquid separation chamber 45, each pressing self-rotation gas-liquid separation device 35 is a symmetrical device and is provided with a fixed block 351, six rails 352, a telescopic arm chamber 353, a telescopic arm 354, a pulley seven 355, a connecting shaft rod nine 356, a rotating shaft chamber 357, three helical blades 358, fifteen 359, sixteen rotating shafts 3510, six springs 3511, two driven gears 3512 and two rotating gears 3513, the fixed blocks 351 on two sides are respectively connected with the outer wall surface 27 of the tail stage gas-liquid separation chamber and the inner wall surface 28 of the tail stage gas-liquid separation chamber, the three helical blades 358 are arranged at the fifteen 359 of the rotating shafts, the telescopic arm chambers 353 and the rotating shaft chamber 357 are arranged inside the fixed block 351, the telescopic arms 354 and the three helical blades 358 are respectively provided with threads meshed with the three helical blades 35358 because the outer wall surface 27 of the tail stage gas-liquid separation chamber and the inner wall surface 28 of the tail stage gas-liquid separation chamber are contracted and expanded into respective rotating chambers, wherein two telescopic arm chambers 353 are arranged on one side, the rotating shaft chamber 357, the rotating shafts 3512 are provided with sixteen rotating shafts 35353510, the rotating shafts 353535353512 are connected with the rotating shafts 35353535353535353510, and are connected with the rotating shafts 3512, and are provided with the rotating shafts 35353513, and run in each rotating shafts 3512, and are provided with the rotating shafts 3512, and run in each other rotating shafts 3512, and run in each rotating shafts 3512, and are provided with the rotating shafts 3512, and each rotating shafts 353535353535353535353535353513;

the inner wall surface sliding devices 32 are uniformly arranged on the inner wall surface 28 of the tail-stage gas-liquid separation chamber, the inner wall surface sliding devices 32 divide the inner wall surface 28 of the tail-stage gas-liquid separation chamber into a plurality of sections, the inner wall surface 28 of each section of tail-stage gas-liquid separation chamber is connected by the inner wall surface sliding devices 32, each inner wall surface sliding device 32 is a symmetrical device and is provided with six pulleys 321, five rails 322 and nine connecting shaft rods 323, the six pulleys 321 on two sides are arranged inside the five rails 322, and the nine connecting shaft rods 323 on two sides are connected with the inner wall surface 28 of the tail-stage gas-liquid separation chamber of the adjacent section; the spiral rotary gas-liquid separation devices 34 are arranged in a plurality of circles around the inner wall surface 28 of the tail-stage gas-liquid separation chamber, each spiral rotary gas-liquid separation device 34 is provided with a fixed shaft rod 341, a spiral separation blade seven 342, a rotating shaft fourteen 343, the fixed shaft rods 341 on two sides are arranged on the inner wall surface 28 of the tail-stage gas-liquid separation chamber, the spiral separation blade seven 342 is arranged at the position of the rotating shaft fourteen 343, the rotating shaft fourteen 343 is inserted between the fixed shaft rods 341 on two sides, the variable-opening shaft 36 is provided with a plurality of circles around the triangular concave-convex impeller 37, each variable-opening shaft 36 is provided with a lever arm 361, a spring seven 362, a rotating shaft seventeen 363, a spring eight 364, a connecting shaft rod eleven 365, a pulley eight 366, and lever arms 361 on two sides are connected with the inner wall surface 28 of the tail-stage gas-liquid separation chamber of the adjacent section, a spring seventh 362 is arranged between the lever arms 361 at two sides, a rotating shaft seventeen 363 is arranged at the position of the connecting shaft lever eleventh 365, the lever arms 361 can change the opening degree by the aid of the rotating shaft seventeen 363, the opening degree is changed, the inner wall surfaces 28 of the tail gas-liquid separation chambers of adjacent sections are combined and separated, due to the action of the second gas-liquid separation type connecting shaft 31, the outer wall surfaces 27 of the tail gas-liquid separation chambers of adjacent sections simultaneously perform the combining and separating operations which are consistent with the inner wall surfaces 28 of the tail gas-liquid separation chambers of adjacent sections, the volume of the tail gas-liquid separation chambers 45 is contracted and expanded, the spring eighth 364 is arranged inside the connecting shaft lever eleventh 365 to provide the length change of the connecting shaft lever eleventh 365, the pulley eighth 366 is connected with the connecting shaft eleventh 365, and the pulley eighth 366 operates in the rail seventh 371; the triangular concave-convex impeller 37 is provided with a track seven 371 and a tail-stage gas-liquid separation chamber rotating shaft 372, the track seven 371 is also in a triangular concave-convex shape, and the tail-stage gas-liquid separation chamber rotating shaft 372 rotates reversely;

optionally, three outer wall surface sliding devices 29 are uniformly and symmetrically arranged, the interval between the adjacent outer wall surface sliding devices is 120 degrees, three second gas-liquid separation type connecting shafts 31 are symmetrically arranged, the interval between the adjacent outer wall surface sliding devices is 120 degrees, three inner wall surface sliding devices 32 are uniformly and symmetrically arranged, the interval between the adjacent inner wall surface sliding devices is 120 degrees, and an inner cavity 3011 of the inlet gas-liquid separation device is a through cavity;

optionally, the six 3511 springs are three layers, each layer is three, the spiral rotary gas-liquid separation devices 34 are three in uniform symmetry, the intervals between the spiral rotary gas-liquid separation devices are 120 degrees, the variable-opening-degree shaft rods 36 are three in uniform symmetry, and the intervals between the variable-opening-degree shaft rods are 120 degrees.

The working process of the invention is as follows:

before the device is started, all the rotating plates are in a closed state, all the springs are in a non-stretching contraction state, the second pulley 141 is located at the concave position of the inner wall telescopic slideway 13, the eighth pulley 366 is located at the convex point position of the triangular concave-convex impeller 37, along with the high-speed gas entering from the top gas side inlet 2 and the bottom gas side inlet 8, the gas flow passes through the tapered gas channel 4 of each driving disk 3, part of the gas flow enters the inner tapered gas channel 4 from the outer tapered gas channel 4 through the tapered port 5, due to the combined action of the tapered gas channel 4 and the tapered port 5, the gas flow speed on the surface of each driving disk 3 is gradually increased, finally the high-speed gas flows out from the gas outlet 6, because the gas outlet 46 of the pneumatic device is arranged on the outer wall surface 1 of the pneumatic device at the corresponding position of the gas outlet 6, and the gas outlet 46 of the pneumatic device is connected with the high-speed gas channel 40, the high-speed gas channel 40 is connected with the gas inlet 39, the high-speed gas flow flowing in from the gas inlet 39 is cooperatively carried out of the high-speed gas outlet 46, so that the high-speed gas flow drives the pneumatic device 7 to rotate in a coaxial driving shaft 44 and rotate reversely to separate the gas-liquid driving shaft 42 and carry out the gas-liquid separation chamber.

As the driving shafts of the first-stage gas-liquid separation chamber 44 and the last-stage gas-liquid separation chamber 45 start to rotate reversely, the four-corner concave-convex impeller 15 and the triangular concave-convex impeller 37 also rotate reversely, in the first-stage gas-liquid separation chamber 44 in the first half period, the pulley II 141 starts to change from the concave position to the convex position of the inner wall telescopic slideway 13, due to the action of centrifugal force, the spring II 146 starts to be stretched, the pulley II 141 pushes the inner wall telescopic slideway 13 to begin to be stretched, the stretched inner wall telescopic slideway 13 pushes each section of the first-stage gas-liquid separation chamber wall surface 12 to expand outwards, the sliding plate I112 moves towards the direction far away from the side baffle 118, the spring I113 is stretched, each section of the first-stage gas-liquid separation chamber wall surface 12 gradually moves far away, when the pulley II 141 reaches the convex position of the inner wall telescopic slideway 13, the sliding plate I112 reaches the position near the topmost end of the slideway 111, the longest stretching moment of the spring II 146 and the spring I113, the volume of the upper chamber reaches the maximum value, the gas-liquid pressure in the chamber instantaneously decreases, and the gas-liquid separation device 30 is additionally installed between the first-liquid separation chamber 44 and the last-stage gas-liquid separation chamber 45, therefore, the last-liquid separation chamber 45 cannot enter the first-liquid separation chamber 44.

In the former half period, in the tail stage gas-liquid separation chamber 45, because the pulley eight 366 is arranged in the track seven 371, along with the rotation of the track seven 371, the three pulleys eight 366 are simultaneously changed from the convex point to the concave point of the triangular concave-convex impeller 37, and start to approach to the central position of the triangular concave-convex impeller 37 along the central line of the connecting shaft rod eleven 365, the three springs eight 364 are simultaneously lengthened and strengthened in tension, the lever arms 361 on the two sides of the inner wall surface 28 of the three-section tail stage gas-liquid separation chamber are simultaneously pulled in tension, the opening degree is reduced, the spring seven 362 is compressed, the inner wall surface sliding device 32 is combined, the inner wall surface 28 of the adjacent tail stage gas-liquid separation chamber starts to approach, the inner chamber volume is reduced, and further the second gas-liquid separation type connecting shaft 31 and the outer wall surface sliding device 29 are combined to realize the simultaneous reduction of the inner chamber outer chamber volume and the inner chamber and outer chamber distance is reduced, the spiral blade three 358 are pressed into the rotating shaft chamber 357, the rotating shaft cavity 357 is combined with meshing threads with the third helical blade 358 to rotate, the second rotating gear 3513 is driven to rotate, the second driven gear 3512 is further driven to rotate, the sixteen rotating shaft 3510 is further driven to rotate, gas-liquid separation is realized when gas-liquid mixing is carried out, meanwhile, the second pressing self-selecting rotating spiral gas-liquid separation device 33 also rotates along with the reduction of the distance between the inner cavity and the outer cavity, the meshing threads which are correspondingly contacted with the inner wall surface 28 of the tail stage gas-liquid separation cavity and the second helical blade 335 rotate, the gas pressure of the inner cavity and the outer cavity of the tail stage gas-liquid separation cavity 45 is instantly increased, the third rotating plate 415 is opened, and continuous high-speed gas in the high-speed gas flow channel 40 is combined, so that the pressure of the high-speed gas flow channel 40 is always lower than that of the tail stage gas-liquid separation cavity 45, the third rotating plate 415 is in a normally open state, and the gas source of the tail stage gas-liquid separation cavity 45 is continuously sucked out, even if the upper cavity of the first-stage gas-liquid separation cavity 44 is also at low pressure, the pressure of the tail-stage gas-liquid separation cavity 45 is smaller, the pressure difference is larger than the magnetic attraction force, the second rotating plate 302 starts to be opened, the upper cavity of the first-stage gas-liquid separation cavity 44 starts to exhaust gas to the tail-stage gas-liquid separation cavity 45, so that the pressure of the upper cavity of the first-stage gas-liquid separation cavity 44 is further reduced on the original basis, and when the pressure difference is smaller than the magnetic attraction force, the second rotating plate 302 is closed.

Since the upper chamber pressure in the first-stage gas-liquid separation chamber 44 is reduced in the first half period, although a certain gap exists between the upper chamber separation plate 20 and the lower chamber separation plate 23 and the first pressing rotation-optional spiral gas-liquid separation device 19, the pressure difference between the chambers is not enough to be maintained, the sliding baffle 176 slides upwards due to the pressure difference, the spring three 175 is compressed, the upper chamber separation plate 20 and the lower chamber separation plate 23 also move upwards, the first pressing rotation-optional spiral gas-liquid separation device 19 starts to rotate, gas-liquid separation is started when gas and liquid are mixed, the pressure difference is larger than the magnetic force of the magnetic attraction block one 242, the check valves 24 at the upper chamber separation plate 20, the lower chamber separation plate 23 and the water inlet channel 25 are randomly opened, water starts to enter the chambers, and the check valves 24 are closed as the pressure difference is smaller than the magnetic attraction force.

Entering the next half period, in the first stage gas-liquid separation chamber 44, the pulley two 141 starts to change to the concave position from the convex position of the inner wall telescopic slideway 13, even if the pulley two is subjected to centrifugal force, the stretched spring two 146 still recovers to the initial state, the pulling force is gradually weakened, the spring one 113 starts to recover to the original shape, and a certain power is generated in the recovery process, the sliding plate one 112 moves to the initial position, the wall surface 12 of each section of the first stage gas-liquid separation chamber gradually approaches, the chamber volume recovers to the original shape, the upper chamber pressure is increased and is higher than that of the lower chamber, meanwhile, the upper chamber partition plate 20 and the lower chamber partition plate 23 also move downwards with the aid of the power of the compressed spring three 175 in the recovery process, the first pressing self-selecting spiral gas-liquid separation device 19 starts to rotate, and gas-liquid separation is started when gas and liquid are mixed.

The inner wall surface 28 of the adjacent tail stage gas-liquid separation chamber begins to approach, the volume of the inner cavity is reduced, and the volume of the inner cavity and the outer cavity is simultaneously reduced by further combining a second gas-liquid separation type connecting shaft 31 and an outer wall surface sliding device 29,

in the tail stage gas-liquid separation chamber 45, the pulley eight 366 is changed from the concave point of the triangular concave-convex impeller 37 to the convex point, the connecting shaft rod eleven 365 is far away from the center position of the triangular concave-convex impeller 37, the stretched spring eight 364 starts to recover the original shape, the pulling force is gradually reduced, the compressed spring seven 362 starts to recover the original shape, and a certain power is generated in the recovery process, the lever arms 361 on two sides of the inner wall surface 28 of the three-stage tail stage gas-liquid separation chamber are simultaneously subjected to power, the opening degree is increased, the original shape is recovered, the chamber volume is recovered, the spring recovers the original shape, the opening degrees of the lever arms 361 on two sides are reduced, the distance between the inner cavity and the outer cavity is increased, the inner wall surface 28 of the adjacent tail stage gas-liquid separation chamber starts to be far away, the inner cavity volume is recovered, the inner cavity and the outer cavity volume is simultaneously recovered by further combining the second gas-liquid separation type connecting shaft 31 and the outer wall surface sliding device 29, the spiral blade three 358 are far away from the rotating shaft cavity 357 in the recovery process, the rotation shaft cavity 357 is combined with meshing threads with the third helical blade 358 to rotate, the second rotating gear 3513 is driven to rotate, the second driven gear 3512 is further driven to rotate, the sixteen 3510 rotating shafts are further driven to rotate, gas-liquid separation is achieved when gas and liquid are mixed, meanwhile, the second pressing self-selection rotating spiral gas-liquid separation device 33 also rotates along with the reduction of the distance between the inner cavity and the outer cavity, the meshing threads which are correspondingly contacted with the inner wall surface 28 of the tail stage gas-liquid separation cavity and the second helical blade 335 rotate, all devices recover to the original shape, the pressure of the cavity of the tail stage gas-liquid separation cavity 45 is reduced, but because of continuous high-speed gas in the high-speed gas channel 40, the pressure of the high-speed gas channel 40 is always lower than that of the tail stage gas-liquid separation cavity 45, the third rotating plate 415 is still in an open state, and the gas in the tail stage gas-liquid separation cavity 45 is continuously sucked out, and the second rotating plate 302 is combined, and the upper cavity of the first-stage gas-liquid separation cavity 44 exhausts gas to the tail-stage gas-liquid separation cavity 45.

And when the light rod 413 and the heavy rod 417 are pushed out of the track eight 411, the rotating plate three 415 is pressed by gravity, the water filling of the whole chamber is completed, and the sealing is completed.

The examples are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any obvious modifications, substitutions or variations can be made by those skilled in the art without departing from the spirit of the present invention.

Claims

1. The pneumatic quick water-free starting self-suction device is characterized by being of a symmetrical structure and comprising a pneumatic device (42), a first-stage gas-liquid separation chamber (44) and a last-stage gas-liquid separation chamber (45), wherein the first-stage gas-liquid separation chamber (44) and the last-stage gas-liquid separation chamber (45) are arranged on the same side of the pneumatic device (42) in the sequence of mounting the pneumatic device (42), the first-stage gas-liquid separation chamber (44) and the last-stage gas-liquid separation chamber (45), a gas outlet (46) of the pneumatic device is connected with a high-speed gas flow passage (40), the outer side of the elbow of the high-speed gas flow passage (40) is connected with a gas inlet (39), the high-speed gas flow flowing out from the gas outlet (46) of the pneumatic device is cooperatively carried out by the high-speed gas flow at the gas inlet (39), a top outlet (10) of the first-stage gas-liquid separation chamber (44) is connected with a top inlet (26) of the last-liquid separation chamber (45), a gas-liquid separation chamber outlet flow passage (43) is connected with the high-speed gas flow passage (40), and a floating ventilation device (41) is arranged at the connection position;

the driving shafts of the first-stage gas-liquid separation chamber (44) and the tail-stage gas-liquid separation chamber (45) are coaxial with the driving shaft of the pneumatic device (42), and the pneumatic device (42) drives the driving disc (3) to rotate by utilizing high-speed gas, so that the driving shaft is driven to rotate;

the primary gas-liquid separation chamber (44) utilizes the telescopic slide rod (14) to change the volume of the chamber so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation, gas exhaust and water drainage;

the tail-stage gas-liquid separation chamber (45) utilizes the triangular concave-convex impeller (37) to change the volume of the inner cavity and the outer cavity so as to generate pressure difference with the outside to realize water absorption, gas-liquid separation, exhaust and drainage;

the bottom of the pneumatic device (42) is provided with a pneumatic device fixing support (9), the bottom of the first-stage gas-liquid separation chamber (44) is connected with the water inlet flow channel (25), and the bottom of the tail-stage gas-liquid separation chamber (45) is provided with a tail-stage gas-liquid separation chamber telescopic support (38).

2. The pneumatic quick water-free starting self-priming device applied to the centrifugal slurry pump according to claim 1, wherein the pneumatic device (42) is provided with a pneumatic device outer wall surface (1), a top gas side inlet (2), a bottom gas side inlet (8), a driving disk (3), a tapered gas passage (4), a tapered opening (5), a gas outlet (6), and a pneumatic device rotating shaft (7) from outside to inside in sequence, the top gas side inlet (2) is horizontally arranged on one side of the pneumatic device outer wall surface (1) and penetrates through the pneumatic device outer wall surface (1), the bottom gas side inlet (8) is horizontally arranged on the other side of the pneumatic device outer wall surface (1) and penetrates through the pneumatic device outer wall surface (1), the driving disks (3) are stacked in a stack and are uniformly inserted into the pneumatic device rotating shaft (7), adjacent driving disks (3) are spaced apart by a certain distance, the tapered gas passage (4) is an annular flow passage, a plurality of rings are arranged on the surface of each driving disk (3), the driving disks (3) are arranged from the direction of the outer edge, the width of the driving disks (3) is uniformly tapered opening, the width of the tapered gas passage (5) is uniformly spaced from the tapered opening (6) to the center point of the tapered gas passage (7), and the tapered gas passage (6) and the tapered gas passage (7) is uniformly spaced from the tapered gas passage (7) by a certain angle, the air outlet (46) of the pneumatic device is arranged on the outer wall surface (1) of the pneumatic device at the corresponding position of the air outlet (6); the driving disk (3) is in reverse rotation under the synergistic action of high-speed gas entering from the top gas side inlet (2) and the bottom gas side inlet (8);

the floating air breather (41) is a symmetrical device and has better buoyancy, one side is provided with a track eight (411), a rotating shaft eighteen (412), a light rod (413), a rubber plate two (414), a rotating plate three (415), a stop block (416), a heavy rod (417), a rotating shaft nineteen (418), a pulley nine (419), an upper impeller three (4110), an inner cavity (4111) of the floating air breather and a lower impeller three (4112), the track eight (411) is arranged in the wall surface of an outlet flow passage (43) of a tail gas-liquid separation chamber, the rotating shaft eighteen (412) connects one end of the rotating plate three (415) with the topmost end of the track eight (411), the stop block (416) enables the rotating plate three (415) to rotate upwards only and cannot rotate downwards, the rubber plate two (414) is arranged at the other end of the rotating plate three (415) to provide sealing performance, the pulley eighteen (419) is arranged in the track eight (411) and is connected with the inner cavity (4111) of the floating air breather, the inner cavity (4111) can slide upwards and downwards, the inner cavity (4111) of the floating air breather can slide upwards and downwards due to gravity, the initial position of the inner cavity (418) of the track eight (4111) of the floating air breather is arranged at the bottom of the track eight (4111), the track eight (417) and the rotating shaft (4110) and the heavy rod (4112), the three are all arranged in the rail eight (411) and can slide up and down, and due to gravity, the initial position of the rotating shaft nineteen (418) is positioned at the upper end of the pulley nine (419), and the other side of the floating ventilation device (41) is consistent with the initial position.

3. The pneumatic quick water-free starting self-priming device applied to the centrifugal slurry pump according to claim 2, characterized in that the distance between the adjacent driving disks (3) is the height of the tapered gas channel (4), the tapered gas channel (4) is provided with two circles in total, the width ratio of the adjacent circles is 0.8, the tapered mouth (5) is conical, the reduction ratio is 0.7, and the interval angle between the adjacent tapered mouths (5) is 45 °.

4. The pneumatic quick water-free starting self-priming device applied to the centrifugal slurry pump according to claim 2, wherein the gas outflow port (6) is circular, and the ratio of the distance from the center of a circle to the axis of the rotating shaft (7) of the pneumatic device to the distance from the innermost wall surface of the tapered gas channel (4) to the axis of the rotating shaft (7) of the pneumatic device is 1:1.5, an inner cavity (4111) of the floating ventilation device is a through cavity.

5. The pneumatic quick water-free starting self-priming device applied to the centrifugal slurry pump is characterized in that the primary gas-liquid separation chamber (44) is provided with a top outlet (10), a sliding device (11), a primary gas-liquid separation chamber wall surface (12), an inner wall telescopic slideway (13), a telescopic slide rod (14), a four-corner concave-convex impeller (15), an upper side gas-liquid separation device (16), a connecting device (17), a track III (18), a first pressing self-rotation spiral gas-liquid separation device (19), an upper side chamber partition plate (20), a transition rotating shaft rod (21), a first gas-liquid separation type connecting shaft (22), a lower side chamber partition plate (23), a one-way valve (24), a water inlet channel (25) and a spring in the primary gas-liquid separation chamber (44) is in an initial state of a non-stretching shrinkage state;

the inner wall telescopic slideway (13) is tightly attached to the inner side of a first-stage gas-liquid separation chamber wall surface (12), the sliding device (11) is uniformly provided with a plurality of sections on the first-stage gas-liquid separation chamber wall surface (12), the sliding device (11) divides the first-stage gas-liquid separation chamber wall surface (12) into a plurality of sections, a first rail (115) is arranged between each section of first-stage gas-liquid separation chamber wall surface (12) and the inner wall telescopic slideway (13), each section of first-stage gas-liquid separation chamber wall surface (12) is connected with the sliding device (11), a slideway (111) is arranged on each sliding device (11), a first sliding plate (112), a first spring (113), a first pull rod (114), a first rail (115), a first pulley (116), a connecting device (117) between pulleys, a side baffle (118), the first pull rod (114) is connected with the first-stage gas-liquid separation chamber wall surface (12) and one end of the inner wall telescopic slideway (13), the first sliding plate (112) is connected with the first pull rod (114) and the connecting device (117) between pulleys, the first pulley (116), the first sliding plate (114) and the second pulley (115) are connected with the first sliding plate (116), the sliding device (116) and the pulley (116) are connected with the pulley (117), and the sliding plate (116), and the pulley (116) connected with the first pulley (116), and the pulley (116) and the pulley (117) and the pulley (116) are connected with the pulley (116), and the pulley (116) connected with the pulley (116) together, the side baffle (118) is connected with the wall surface (12) of the primary gas-liquid separation chamber and the other end of the inner wall telescopic slideway (13), the slideway (111) is connected with the side baffle (118), and the sliding plate I (112) moves away from the side baffle (118) and close to the side baffle (118) on the slideway (111) to drive the wall surface (12) of each primary gas-liquid separation chamber and the inner wall telescopic slideway (13) to merge and separate, so that the volume is reduced and expanded;

the telescopic slide bars (14) are arranged at four-corner concave-convex impellers (15), each telescopic slide bar (14) is provided with a second pulley (141), a rolling shaft (142), a first connecting shaft rod (143), a third pulley (144), an outer blocking layer (145) and a second spring (146), one end of the first connecting shaft rod (143) penetrates through an inner cavity (151) of the four-corner concave-convex impeller to be connected with a first-stage gas-liquid separation chamber rotating shaft (152), the other end of the first connecting shaft rod is connected with the outer blocking layer (145), the second spring (146) is arranged inside the first connecting shaft rod (143) to provide length change for the first connecting shaft rod (143), the outer blocking layer (145) wraps the third pulley (144), the third pulley (144) operates on the outer edge of the second pulley (141), the rolling shaft (142) is used for the second pulley (141) to rotate under the operation of the third pulley (144), the four-corner concave-convex-liquid impeller (15) is provided with the four-corner concave-convex impellers (151), the first-liquid separation chamber rotating shaft (152), and the first-stage gas-liquid separation chamber rotating shaft (152) is reversely rotated;

the two upper side gas-liquid separation devices (16) are symmetrically arranged about a center line of the first stage gas-liquid separation chamber (44), the upper side gas-liquid separation devices (16) are symmetrical devices, each upper side gas-liquid separation device (16) is provided with an upper side gas-liquid separation device inner cavity (162), a connecting shaft rod II (164), a rotating bearing (165), a spiral separation blade I (166), a rotating shaft I (167), one side of each upper side gas-liquid separation device (16) is provided with an upper side impeller I (161), a lower side impeller I (163) and the other side of each upper side gas-liquid separation device inner cavity are consistent with each other, the upper side gas-liquid separation device inner cavity (162) and the spiral separation blade I (166) are arranged at the rotating shaft I (167), the rotating shaft I (167) is connected with an upper end rotating bearing and a lower end rotating bearing (165), the upper end rotating bearing and the lower end rotating bearing (165) are respectively connected with the connecting shaft rod II (164) at the corresponding ends, the upper side and the lower side connecting shaft II (164) is connected with the upper side gas-liquid separation device inner cavity (162), the rotating bearing (1651) is formed by combining a bearing slide rail (1652), and the rotating bearing (1652) can be arranged for the rotation of a plurality of rotating bearing (166) which can be used for introducing other rotating blade separating devices, and other rotating bearings (166) are not introduced;

the connecting device (17) is a symmetrical device and is provided with an upper side baffle (174), a spring III (175) and a sliding baffle (176), one side of the connecting device is provided with a connecting device shell (171), a track II (172), a pulley IV (173) and the other side of the connecting device shell is consistent with the track II (172) and the pulley IV (173), the connecting device shell (171) is connected with the track II (172) and the lower side wall surface of the primary gas-liquid separation chamber (44), the pulley IV (173) operates in the track II (172) and is connected with the sliding baffle (176) and the upper side partition plate (201) so as to enable the sliding baffle (176) and the upper side partition plate (201) to slide up and down, two sides of the upper side baffle (174) are connected with the connecting device shell (171), the upper part of the connecting device shell is connected with the wall surface (12) of the primary gas-liquid separation chamber, and the spring III (175) is connected with the upper side baffle (174) and the sliding baffle (176);

the first pressing self-rotation spiral gas-liquid separation device (19) is provided with two first pressing self-rotation spiral gas-liquid separation devices (19) at the upper side in a symmetrical mode about the central line of the first-stage gas-liquid separation chamber (44), the two first pressing self-rotation spiral gas-liquid separation devices at the upper side are provided with two lower sides in a symmetrical mode about the central line of the transition rotating shaft rod, the number of the upper sides is four in total, each first pressing self-rotation spiral gas-liquid separation device (19) is provided with a connecting shaft rod III (191), a rotating bearing (165), a spiral separation blade II (192), a rotating shaft II (193), a rotating shaft III (194), a spiral blade I (195) and a transmission gear I (196), and the connecting shaft rod III (191) is connected with the rotating bearing (165) and the lower side wall face of the first-stage gas-liquid separation chamber (44), the rotating bearing (165) is connected with a second rotating shaft (193) and can be used for rotating a first pressing self-rotation spiral gas-liquid separation device (19), the second spiral separation blade (192) is arranged at the second rotating shaft (193), two ends of a third rotating shaft (194) are respectively connected with the second rotating shaft (193) and a first transmission gear (196), the first spiral blade (195) is arranged at the second rotating shaft (193), the upper side partition plate (201) and the first spiral blade (195) are provided with corresponding meshing threads in a contact mode, the first spiral blade (195) can rotate along with the up-and-down operation of the upper side partition plate (201), and the first transmission gear (196) is meshed with the first driven gear (212), the rotation of the first transmission gear (196) can drive the first driven gear (212) to rotate, and a third connecting shaft rod of the first pressing self-rotation spiral gas-liquid separation device (19) at the lower side is connected with the wall surface of the water inlet flow channel (25);

the upper side chamber partition plate (20) is provided with an upper side partition plate (201), a rotating shaft four (202) and one-way valves (24), the rotating shaft four (202) operates in a track three (18), the track three (18) is arranged on the lower side wall surface of the primary gas-liquid separation chamber (44), the number of the track three (18) is the same as the symmetrical mode of the first pressing self-rotation spiral gas-liquid separation device (19), the track three (18) is totally four, and the number of the one-way valves (24) is symmetrically arranged at the upper side partition plate (201); two transition rotating shaft rods (21) are symmetrically arranged about the center line of the primary gas-liquid separation chamber (44), each transition rotating shaft rod (21) is provided with a fifth rotating shaft (211), a first driven gear (212), a fourth connecting shaft rod (213) and a rotating bearing (165), the fifth rotating shaft (211) is connected with the rotating bearing (165), the fourth connecting shaft rod (213) is connected with the rotating bearing (165), and the first driven gear (212) is meshed with the first upper and lower transmission gears (196); the upper end of the first gas-liquid separation type connecting shaft (22) is connected with a sliding baffle (176), the lower end of the first gas-liquid separation type connecting shaft is connected with the lower side chamber partition plate (23), the sliding baffle (176) and the lower side chamber partition plate (23) move upwards and downwards at the same time for a consistent distance, a plurality of first gas-liquid separation type connecting shafts (22) are uniformly arranged at the sliding baffle (176), each first gas-liquid separation type connecting shaft (22) is provided with a connecting shaft rod five (221), a rotating shaft six (222), a spiral separation blade three (223) and a rotating bearing (165), the spiral separation blade three (223) is arranged on the rotating shaft six (222), the rotating shaft six (222) is connected with the upper and lower side rotating bearings (165), and the rotating bearing (165) is connected with the corresponding connecting shaft rod five (221); the lower side chamber partition plate (23) is provided with a lower side partition plate (231), a rotating shaft seven (232) and one-way valves (24), the rotating shaft seven (232) operates in the track three (18), the one-way valves (24) are symmetrically arranged at the lower side partition plate (231), the lower side partition plate (231) is provided with corresponding meshing threads in contact with the lower side helical blade one (195), and the lower side helical blade one (195) can rotate along with the up-and-down operation of the lower side partition plate (231); the one-way valve (24) evenly is equipped with a plurality of in water inlet channel (25) wall department, and every one-way valve (24) both sides are equipped with rotation axis eight (241), and magnetism is inhaled piece one (242), rotor plate one (243), and rubber slab one (244), rotor plate one (243) one end links to each other with rotation axis eight (241), and rubber slab one (244) is settled to the other end, provides the leakproofness, magnetism is inhaled piece one (242) and is settled on the rotor plate one (243) of both sides, guarantees that the rotor plate one (243) of both sides is laminated with the help of magnetic force, prevents rotor plate one (243) and rotates downwards.

6. The pneumatic quick water-free starting self-suction device applied to the centrifugal slurry pump is characterized in that the four sliding devices (11) are symmetrically arranged about the center line of the first-stage gas-liquid separation chamber (44), the included angle between every two adjacent sliding devices (11) is 90 degrees, the number of the telescopic sliding rods (14) is four, the included angle between every two adjacent telescopic sliding rods (14) is 90 degrees, the inner cavity (162) of the upper-side gas-liquid separation device is a through cavity, and the separation capacity of the upper-side chamber separation plate (20) and the lower-side chamber separation plate (23) is good.

7. The pneumatic quick water-free starting self-priming device applied to the centrifugal slurry pump according to claim 5, wherein the number of the check valves (24) is two at the inclined position of the upper side partition plate (201), two at the horizontal position of the lower side partition plate (231), three at the wall surface of the water inlet flow passage (25), and three at the first gas-liquid separation type connecting shafts (22).

8. The pneumatic quick water-free starting self-priming device applied to the centrifugal slurry pump is characterized in that a top inlet (26), an outer wall surface (27), a telescopic bracket (38), an outer wall surface sliding device (29), an inlet gas-liquid separation device (30), a second gas-liquid separation type connecting shaft (31), a second pressing self-selection spiral gas-liquid separation device (33), a pressing self-selection spiral gas-liquid separation device (35), an inner wall surface (28) of the tail gas-liquid separation chamber, an inner wall surface sliding device (32), a spiral rotary gas-liquid separation device (34), a variable-opening-degree shaft rod (36), a triangular concave-convex impeller (37) and a spring in the tail gas-liquid separation chamber (45) are sequentially arranged from outside to inside, and are in an unstretched contraction state;

the tail-stage gas-liquid separation chamber telescopic support (38) is arranged on the outer wall surface (27) of the tail-stage gas-liquid separation chamber, so that the height change of the integral structure of the tail-stage gas-liquid separation chamber (45) from the ground in the volume scaling process can be automatically adjusted; the outer wall surface sliding devices (29) are uniformly arranged on the outer wall surface (27) of the tail-stage gas-liquid separation chamber, the outer wall surface sliding devices (29) divide the outer wall surface (27) of the tail-stage gas-liquid separation chamber into a plurality of sections, the outer wall surfaces (27) of each section of tail-stage gas-liquid separation chamber are connected through the outer wall surface sliding devices (29), each outer wall surface sliding device (29) is a symmetrical device and is provided with five pulleys (291), four rails (292) and six connecting shaft rods (293), the five pulleys (291) on two sides are arranged in the four rails (292), and the six connecting shaft rods (293) on two sides are connected with the outer wall surface (27) of the tail-stage gas-liquid separation chamber of the adjacent section; the inlet gas-liquid separation device (30) is arranged at a top inlet (26) and is symmetrically arranged about the central line of a tail-stage gas-liquid separation chamber (45), each inlet gas-liquid separation device (30) is a symmetrical device and is provided with a rotating shaft nine (301), a rotating plate II (302), a baffle plate (303), a magnetic suction block II (304), a spring five (305), an upper side impeller II (306), a connecting shaft rod seven (307), a lower side impeller II (308), a spiral separation blade IV (309), a rotating shaft ten (3010) and an inlet gas-liquid separation device inner cavity (3011), the baffle plates (303) on two sides are arranged on the wall surface of the top inlet (26), the rotating shaft nine (301) on two sides are respectively arranged at the corresponding baffle (303), the rotating plate two (302) on two sides are respectively connected with the corresponding rotating shaft nine (301), the magnetic suction block two (304) is arranged on the rotating plate two (302) on two sides to ensure that the rotating plate two (302) on two sides are attached by virtue of the magnetic force to prevent the rotating plate two (302) from rotating upwards, the spring five (305) on two sides is respectively connected with the rotating plate two (302) on the corresponding side and the baffle (303), the upper side impeller two (306), the connecting shaft rod seven (307), the lower side impeller two (308), the spiral separation blade four (309), the rotating shaft ten (3010) and the baffle (303) on two sides, the rotating bearings (165) are all arranged in an inner cavity (3011) of the inlet gas-liquid separation device, the rotating shaft ten (3010) is connected with the upper and lower rotating bearings (165), the upper and lower rotating bearings (165) are connected to enable the spiral separation blade four (309) to rotate, the upper and lower rotating bearings (165) are respectively connected with the connecting shaft rod seven (307) on the corresponding side, the connecting shaft rod seven (307) on the upper and lower sides are connected with the wall surface of the inner cavity (3011) of the inlet gas-liquid separation device, and the spiral separation blade four (309) is arranged at the rotating shaft ten (3010);

the second gas-liquid separation type connecting shaft (31) is connected with the outer wall surface sliding device (29) and the inner wall surface sliding device (32) and is provided with a plurality of connecting shaft rods eight (311), a spiral separation blade five (312), a rotating shaft eleven (313) and a rotating bearing (165), each second gas-liquid separation type connecting shaft (31) is provided with a connecting shaft rod eight (311), an inner side connecting shaft rod 165 and a connecting shaft rod eight (311), the outer side connecting shaft rod eight (311) is connected with the outer side rotating bearing (165), the inner side rotating bearing (165) is connected with the inner side connecting shaft rod eight (311), the outer side rotating bearing (165) is connected with the track four (292), the inner side connecting shaft rod eight (311) is connected with the track five (322), and the spiral separation blade five (312) is arranged at the position of the rotating shaft eleven (313); the second pressing self-rotation spiral gas-liquid separation devices (33) are uniformly arranged in a plurality of numbers around the inner wall surface (28) of the tail-stage gas-liquid separation chamber, each second pressing self-rotation spiral gas-liquid separation device (33) is provided with a connecting shaft rod ten (331), a rotating shaft twelve (332), a spiral separation blade six (333), a rotating shaft thirteen (334), a spiral blade two (335) and a rotating bearing (165), the rotating bearing (165) is connected with the connecting shaft rod ten (331) and the rotating shaft twelve (332), the connecting shaft rod ten (331) is arranged on the inner side of the outer wall surface (27) of the tail-stage gas-liquid separation chamber, the spiral separation blade six (333) is arranged at the rotating shaft twelve (332), the rotating shaft thirteen (334) is connected with the rotating shaft twelve (332), the rotating shaft twelve (332) penetrates through the inner wall surface (28) of the tail-stage gas-liquid separation chamber, the spiral blade two (335) is arranged at the rotating shaft twelve (332), the tail-stage gas-liquid separation chamber (28) is correspondingly contacted with the spiral blade two (335), and the tail-liquid separation chamber can rotate along with the contracting and expanding inner wall surface of the tail-liquid separation chamber (28);

the self-rotating pressing gas-liquid separation device (35) is symmetrically arranged about the central line of a tail-stage gas-liquid separation chamber (45), each self-rotating pressing gas-liquid separation device (35) is a symmetrical device and is provided with a fixed block (351), a track six (352), a telescopic arm cavity (353), a telescopic arm (354), a pulley seven (355), a connecting shaft rod nine (356), a rotating shaft cavity (357), a helical blade three (358), a rotating shaft fifteen (359), a rotating shaft sixteen (3510), a spring six (3511), a driven gear two (3512) and a rotating gear two (3513), the fixed blocks (351) on two sides are respectively connected with the outer wall surface (27) of the tail-stage gas-liquid separation chamber and the inner wall surface (28) of the tail-stage gas-liquid separation chamber, the telescopic arm cavity (353) and the rotating shaft cavity (357) are arranged inside the fixed blocks (351), the telescopic arm (354) and the helical blade three (358) respectively enter the outer wall surface (27) of the tail-stage gas-liquid separation chamber and the tail-liquid separation chamber (28) due to the outer wall surface, the inner wall surface of the telescopic arm cavity (353) and the helical blade cavity (357) and the helical blade three helical blade (357) can enter one side of the tail-liquid separation chamber, and one side of the helical blade chamber (358) can be meshed with the helical blade three helical blade (358), the telescopic arm (354) is connected with a connecting shaft rod nine (356), the connecting shaft rod nine (356) is connected with a pulley seven (355), the pulley seven (355) runs in a track six (352), the number of layers of springs six (3511) is provided, the number of layers of springs six (3511) is not interfered with each other, the driven gear two (3512) is arranged on the rotating shaft sixteen (3510), the rotating gear two (3513) is arranged on the rotating shaft fifteen (359) on two sides and meshed with each other, and the rotating shaft fifteen (359) rotates to drive the rotating shaft sixteen (3510) to rotate;

the inner wall surface sliding devices (32) are uniformly arranged on the inner wall surface (28) of the tail-stage gas-liquid separation chamber, the inner wall surface sliding devices (32) divide the inner wall surface (28) of the tail-stage gas-liquid separation chamber into a plurality of sections, the inner wall surface (28) of each section of tail-stage gas-liquid separation chamber is connected by the inner wall surface sliding devices (32), each inner wall surface sliding device (32) is a symmetrical device and is provided with six pulleys (321), five tracks (322) and nine connecting shaft rods (323), the six pulleys (321) on two sides are arranged in the five tracks (322), and the nine connecting shaft rods (323) on two sides are connected with the inner wall surface (28) of the tail-stage gas-liquid separation chamber on the adjacent section; the spiral rotary gas-liquid separation devices (34) are arranged in a circle around the inner wall surface (28) of the tail-stage gas-liquid separation chamber, each spiral rotary gas-liquid separation device (34) is provided with a fixed shaft rod (341), a spiral separation blade seven (342) and a rotating shaft fourteen (343), the fixed shaft rods (341) on two sides are arranged on the inner wall surface (28) of the tail-stage gas-liquid separation chamber, the spiral separation blade seven (342) is arranged at the position of the rotating shaft fourteen (343), the rotating shaft fourteen (343) is inserted between the fixed shaft rods (341) on two sides, the variable-opening-degree shaft rods (36) are arranged in a circle around the triangular concave-convex impeller (37), each variable-opening degree shaft lever (36) is provided with a lever arm (361), a spring seven (362), a rotating shaft seventeen (363), a spring eight (364), a connecting shaft lever eleven (365) and a pulley eight (366), the lever arms (361) on two sides are connected with the inner wall surface (28) of the tail-stage gas-liquid separation chamber of the adjacent section, the spring seven (362) is arranged between the lever arms (361) on two sides, the rotating shaft seventeen (363) is arranged at the position of the connecting shaft lever eleven (365), the opening degree of the lever arms (361) can be changed by the aid of the rotating shaft seventeen (363), and the opening degree is changed to enable the inner wall surfaces (28) of the tail-stage gas-liquid separation chambers of the adjacent sections to be combined and separated, the outer wall surface (27) of the tail-stage gas-liquid separation chamber between adjacent tail-stage gas-liquid separation chambers is simultaneously combined and separated with the inner wall surface (28) of the tail-stage gas-liquid separation chamber of an adjacent section, the volume of the tail-stage gas-liquid separation chamber (45) is contracted and expanded, the spring eight (364) is arranged inside the connecting shaft rod eleven (365) to provide length change of the connecting shaft rod eleven (365), the pulley eight (366) is connected with the connecting shaft rod eleven (365), and the pulley eight (366) operates in the track seven (371); be equipped with seven (371) of track on triangle unsmooth impeller (37), tail gas-liquid separation chamber pivot (372), seven (371) of track appearance also are the triangle unsmooth form, tail gas-liquid separation chamber pivot (372) reversal.

9. The pneumatic quick water-free starting self-priming device applied to the centrifugal slurry pump according to claim 8, wherein the number of the outer wall surface sliding devices (29) is three, the adjacent intervals are 120 degrees, the number of the second gas-liquid separation type connecting shafts (31) is three, the adjacent intervals are 120 degrees, the number of the inner wall surface sliding devices (32) is three, the adjacent intervals are 120 degrees, and the inner cavity (3011) of the inlet gas-liquid separation device is a through cavity.

10. The pneumatic type quick water-free starting self-priming device applied to the centrifugal slurry pump according to claim 8, wherein the number of the springs six (3511) is three, three springs are uniformly arranged on each layer, three screw type rotating gas-liquid separation devices (34) are uniformly and symmetrically arranged, the interval between the three screw type rotating gas-liquid separation devices is 120 degrees, and the interval between the three screw type rotating gas-liquid separation devices is 120 degrees.